Pass & Seymour PS20AC1 Extra H...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$10.23
Pass & Seymour PS20AC1 Extra Heavy-Duty Industrial Specification Grade Toggle Switch

Pass & Seymour PS20AC1 Extra Heavy-Duty Industrial Specification Grade Toggle Switch

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Model: PS20AC1-W

In Stock (leaves warehouse same day if ordered before 3pm ET)

$10.23
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Pass & Seymour PS20AC1W Industrial Extra Heavy Duty Specification Grade Toggle Switch, White

The Pass & Seymour PS20AC1W is an industrial extra heavy duty, specification grade toggle switch finished in white with a matte surface. Built for demanding commercial and industrial environments, it features a one-piece nickel-plated brass strap, a glass-reinforced thermoplastic back body, and side and external screw-pressure-plate back wire terminals that accept #14 - #10 AWG copper or copper-clad wire. The switch is cULus Listed and Federal Spec Listed, making it a reliable choice for professional electrical installations that demand code-compliant, long-service-life performance.

Key Features

  • Positive Grounding: Auto-ground clip assures positive ground, with a grounding terminal standard on the screw-pressure plate back wire design.
  • Durable Construction: One-piece nickel-plated brass strap delivers superior corrosion resistance for long-term reliability.
  • Cam Control Action: Cam control and spring actuator provide positive "makes and breaks" for consistent switching performance.
  • Quiet Operation: Heavy-duty bumpers allow for quiet, smooth operation, while locking support resists face and back body separation.
  • Impact- and Chemical-Resistant Cover: One-piece toggle is molded from chemical-, impact-, and heat-resistant thermoplastic for durability in harsh conditions.
  • Contact Reliability: Heavy-duty, brass alloy, one-piece contact arm virtually eliminates contact bounce, paired with oversized silver-alloy contacts for long life and better heat dissipation.
  • Back Wire Termination: Side and external screw-pressure-plate back wire terminals accept #14 - #10 AWG copper or copper-clad wire, with a shallow design for easier installation.
  • Reinforced Back Body: Glass-reinforced, chemical-resistant thermoplastic back body adds durability, strength, and resistance to harsh cleaners.

Certifications & Compliance

  • cULus Listed
  • Federal Spec Listed

Technical Specifications

  • Country Of Origin: Mexico
  • Product Finish: Matte
  • Product Height: 3.281 in
  • Product Line: Pass & Seymour
  • Product Width: 1.32 in
  • Product Depth: 1.073 in

Typical Applications

  • Commercial and Industrial Electrical Installations
  • Specification-Grade Lighting and Power Control
  • Heavy-Duty Toggle Switching Applications
  • Facilities Requiring Federal Specification Compliance
  • Renovation and New Construction Wiring Projects

Why Pass & Seymour?

Pass & Seymour builds this toggle switch with a nickel-plated brass strap, oversized silver-alloy contacts, and a glass-reinforced thermoplastic back body to withstand the demands of industrial and commercial duty. Backed by cULus Listing and Federal Spec Listing, it delivers the dependable, code-compliant switching performance electrical professionals rely on for extra heavy duty applications.

Manufacturer Resources

Spec Sheet

Product Specs

Listing:
cULus
Product Group:
Wiring Devices
Product Finish:
Matte
Department:
Electrical
Country of Origin:
Mexico
Product Type:
Toggle Switch
Product Subgroup:
Toggle Switches

Pass & Seymour PS20AC1-W – Frequently Asked Questions

1) What wire size do the terminals on the Pass & Seymour PS20AC1 toggle switch accept?
Side and external screw-pressure-plate back wire terminals on the PS20AC1 take #14 through #10 AWG copper or copper-clad wire. That covers 12 AWG branch circuits on 20A lighting runs without needing pigtails, and the back wire design is shallow so it seats easier in a crowded box. Note these are screw-pressure plates, not push-in quick connects, so strip straight and clamp under the plate.
2) Is the PS20AC1 toggle switch UL listed and does it meet federal specification requirements?
It is cULus Listed and Federal Spec Listed. That combination is what lets it be used on government and institutional jobs where the drawings call out federal specification compliance for wiring devices.
3) I need a three-way switch for a stairwell, is this the right device?
No. If the opening needs two switch locations controlling one light, order a three-way rather than this one. The Eaton Arrow Hart industrial grade three-way toggle switch at 20A 120/277V, or the Bryant 4903 3-way AC toggle switch at 20A 277V, are the three-way options to look at instead.
4) What is the closest equivalent to the Pass & Seymour PS20AC1 from another brand?
The Leviton 1221 is the nearest match in kind: it is an SPST toggle switch rated extra heavy-duty industrial specification grade at 20A, 120/277V. The PS20AC1 is likewise an extra heavy duty specification grade toggle switch with a one-piece nickel-plated brass strap and oversized silver-alloy contacts. The Leviton 1221-2KL is the same extra heavy-duty spec grade 1-pole switch at 20A, 120/277V. Both lines are single-pole devices, so either substitutes where the PS20AC1 is controlling a load from one location.
5) I need three-way switching instead of single-pole - what should I order?
The PS20AC1 is a single-pole extra heavy duty specification grade toggle switch, so it will not give you two-location control. For three-way, the Eaton Arrow Hart industrial grade three-way toggle switch is rated 20A at 120/277V, and the Bryant 4903W is a 3-way AC toggle switch rated 20A 277V in commercial grade. Use a pair of those at the two switch points.
6) I need to match ivory devices already in the building - the PS20AC1 does not come in ivory, what else is spec grade?
The Pass & Seymour PS20AC1 is offered in brown (PS20AC1) and white (PS20AC1-W) with a matte finish. If the existing devices are ivory, the Leviton 1201-2I is an extra heavy-duty industrial/specification grade toggle switch in ivory, which keeps you at the same grade of construction while matching the color across the other openings.
7) Does the PS20AC1 switch have a ground terminal, or do I need a separate grounding screw?
A grounding terminal is standard on the screw-pressure plate back wire design, and there is also an auto-ground clip that bonds the strap to a grounded metal box through the mounting screw. So you can land the equipment ground directly on the device, and in a grounded metal box you get positive ground even without it.
8) Will the Pass & Seymour PS20AC1 hold up in a wash-down or chemical plant area?
The construction targets that kind of abuse: one-piece nickel-plated brass strap for corrosion resistance, a glass-reinforced chemical-resistant thermoplastic back body that stands up to harsh cleaners, and a one-piece toggle molded from chemical-, impact- and heat-resistant thermoplastic. It is still a standard device, so if the location needs a sealed or weatherproof enclosure, that comes from the cover and box, not the switch.
9) What colors does the Pass & Seymour PS20AC1 come in, and which part number is which?
Two colors. Brown is PS20AC1, and white is PS20AC1-W. Both have a matte face rather than a gloss finish, which matters if you are matching adjacent devices on a wall of existing spec grade switches.
10) Why choose an extra heavy-duty spec grade toggle switch instead of a commercial grade one?
Spec grade devices like this Pass & Seymour switch use oversized silver-alloy contacts and a one-piece brass alloy contact arm with cam and spring actuation, so the make and break is positive and contact bounce is largely eliminated. That is what you want on high-cycle openings, corridor lighting and motor-adjacent loads. For a light-use private office on a residential-style circuit, commercial grade is usually enough; a commercial grade alternative in the same format is the Bryant 4903 3-way AC toggle switch.
11) I need a switch with a pilot light so staff can see it is on from down the hall. Does this one have one?
The Pass & Seymour PS20AC1 is a plain toggle with no illuminated indicator. For that, look at the Leviton industrial grade pilot light toggle switch, a 1-pole 120V device.
12) Is there a lighter-duty alternative to the PS20AC1 for a 15A lighting circuit?
The Bryant 4801W is a 4-Series single-pole toggle switch rated 15A at 277V AC, in white. It covers single-pole lighting control at the lower amp rating, where the Pass & Seymour PS20AC1 is an extra heavy duty specification grade device with a glass-reinforced thermoplastic back body and heavy-duty brass alloy one-piece contact arm for industrial duty. Confirm the branch circuit and load rating before dropping down.
13) I want to see from the hallway whether the switch is on - does the PS20AC1 do that?
No. The PS20AC1 has a one-piece toggle molded from chemical-, impact-, and heat-resistant thermoplastic with no illuminated element. For a visible indication, the Leviton 1201PLC is an industrial grade pilot light toggle switch, 1-pole, 120V. Note it is industrial grade rather than the extra heavy duty specification grade construction of the PS20AC1.
14) Is a commercial grade switch like the Bryant 4903W the same thing as the PS20AC1?
They are not the same class of device. The Bryant 4903W is described as commercial grade, while the Pass & Seymour PS20AC1 is an extra heavy duty specification grade switch with a one-piece nickel-plated brass strap, oversized silver-alloy contacts, and an auto-ground clip, and it is cULus Listed and Federal Spec Listed. The 4903W is also a 3-way device rather than single-pole. If a job specifies federal spec compliance or spec grade construction, the two are not interchangeable.
15) What are the physical dimensions of the PS20AC1 switch body?
The device measures 3.281 in height, 1.32 in width and 1.073 in depth. The shallow back wire body is the part that matters on a retrofit into an old shallow box or a box already full of conductors.
16) Is the PS20AC1 quiet enough for a classroom or patient room corridor?
Heavy-duty bumpers are built in for quiet, smooth operation, and locking support keeps the face and back body from separating over years of use. It is a mechanical toggle, so there is still an audible click, just damped compared with a basic device.
How fast can I get the Pass & Seymour PS20AC1-W delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Pass & Seymour PS20AC1-W come with a warranty?
Absolutely. The Pass & Seymour PS20AC1-W is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Pass & Seymour PS20AC1-W?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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